Home / 85,580.56-128,338.08-29,410.24

Finding the Fourth Proportional to 85,580.56, 128,338.08 and 29,410.24

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Solution

The fourth proportional to 85,580.56, 128,338.08 and 29,410.24 is: 44,104.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,580.56 : 128,338.08 = 29,410.24 : x
  2. Step 2: Convert to fraction form
    85,580.56/128,338.08 = 29,410.24/x
  3. Step 3: Cross multiply
    85,580.56x = 128,338.08 × 29,410.24
  4. Step 4: Simplify right side
    85,580.56x = 3,774,453,733.94
  5. Step 5: Solve for x
    x = 3,774,453,733.94/85,580.56
  6. Step 6: Final answer
    x = 44,104.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.